<div class="leftcontent">
	<div class="leftnav">
		<div class="leftnavtop"></div>
		<div class="leftnavmiddle">
			<ul>
				<li id="item_01" class="<?php if($menu == '01') echo "selected"; ?>"><a href="<?php echo $this->config->base_url();?>paper/paper">论文列表</a></li>
				<li id="item_02" class="<?php if($menu == '02') echo "selected"; ?>"><a href="<?php echo $this->config->base_url();?>paper/upload">上传论文</a></li>
			</ul>
		</div>
		<div class="leftnavbottom"></div>
	</div>
</div>
